About 27.3 million passengers will travel globally on U.S. airlines over the Thanksgiving travel period, up 2.5% from last year’s 26.6 million fliers, according to a forecast by trade group Airlines for America.

EasyJet reported a 22% drop in fiscal-year net profit after terror attacks, the weak pound and strikes hurt its business. The U.K. carrier signaled earnings could fall again amid the impact of Britain’s decision to leave the EU.

About 45.2 million passengers are expected to fly globally on U.S. airlines during the 21-day holiday period from Dec. 16 through Jan. 5, up 3.5% from the same period in 2015, according to the leading airline trade group.

The further retreat in oil prices at the start of the year could prolong a period of global air travel growth above historic averages, says Brian Pearce, chief economist at the International Air Transport Association.